[Letux-kernel] depmod for replicant modules

Josua Mayer josua.mayer at jm0.eu
Wed Jul 3 16:11:18 CEST 2019


Hi Nikolaus,

Am 03.07.19 um 16:09 schrieb H. Nikolaus Schaller:
> Hi Josua,
> 
>> Am 03.07.2019 um 16:01 schrieb Josua Mayer <josua.mayer at jm0.eu>:
>>
>> Hi Andreas,
>>
>> Am 29.06.19 um 18:40 schrieb Andreas Kemnade:
>>> On Sat, 29 Jun 2019 18:15:02 +0200
>>> "H. Nikolaus Schaller" <hns at goldelico.com> wrote:
>>>
>>>>> Am 29.06.2019 um 17:29 schrieb Andreas Kemnade <andreas at kemnade.info>:
>>>>>
>>>>> Hi,
>>>>>
>>>>> I found some dirty way to create a modules.dep file in finished
>>>>> replicant images.
>>>>> On a system with depmod available.
>>>>> - create a directory /some_tmp_dir/lib/modules/
>>>>> ln -s /path/to/replicant/system/lib/modules /some_tmp_dir/lib_modules/4.17
>>>>> depmod -b /some_tmp_dir 4.17  
>>>>
>>>> yes, that is the principle described by
>>>>
>>>> https://android.googlesource.com/device/asus/fugu/+/b01b7fd/AndroidKernel.mk#102
>>>>
>>>> I had tried it but maybe got the symlink wrong.
>>>>
>>>> What I don't get with these paths is what is constant file names and what is system-dependent.
>>>> For example why do you use /some_tmp_dir/lib_modules/4.17 and not /some_tmp_dir/lib/modules/4.17
>>>>
>>>> Could you please rewrite as something like
>>>>
>>>> KERNEL_MODULES_FROM_BUILD=...
>>>> TEMP_DIR=/tmp/build-$$
>>>> ln -s $KERNEL_MODULES_FROM_BUILD ... 
>>>> depmod -b ...
>>>>
>>>> etc.
>>>>
>>>>>
>>>>> modprobe then works. But now we a using a lot of insmod in load_modules.sh,
>>>>> so it is not so important  
>>>>
>>>> Indeed. As long as the load_modules.sh is complete and loads all what is needed.
>>>>
>>> oh, we have some modprobe there...
>>>
>>> There is a patch for depmod at
>>>
>>> http://lists.goldelico.com/pipermail/gta04-owner/2017-December/007547.html
>> Glad you found the patch! I remember pulling a lot of hair over it :(
>> The commit description however says all there is to know about insmod
>> being the outdated way.
> 
> I have a new kernel version that builds a modules.dep.bb which is compatible to the special BusyBox format used by Replicant 4.2.
> 
> See:
> 
> http://git.goldelico.com/?p=letux-kernel.git;a=commitdiff;h=9d648ca900fa364591cf08946021384f884e570f
I have never heard about the need for a special format .. .. ../
However I am pretty sure that android switched to toybox quite a while ago.
> 
> BR,
> Nikolaus
> 
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